0:00

Here's a patient with a right frontal abnormality,

0:02

is hyperintense ill-defined.

0:06

Um, hyperintense signal on T two again goes with it.

0:10

I think water is bright on, uh, dark on, uh, CT

0:15

water is bright on T two.

0:16

So again, both those go with, uh, cellularity, uh,

0:21

a tumor with cells that have a high, um, amount of nu of,

0:26

uh, cytoplasm relative to the nucleus, which also goes

0:30

with relative facilitated diffusion.

0:33

So this is a diffuse astrocytoma.

0:36

Diffuse astrocytoma is what the WHO criteria, um, refers to

0:42

the, this one previously would've been called a fibrillary

0:45

astrocytoma, so it's,

0:48

but it's now called the diffuse astrocytoma.

Case: Diffuse Astrocytoma

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0:00

Here's a patient with a right frontal abnormality,

0:02

is hyperintense ill-defined.

0:06

Um, hyperintense signal on T two again goes with it.

0:10

I think water is bright on, uh, dark on, uh, CT

0:15

water is bright on T two.

0:16

So again, both those go with, uh, cellularity, uh,

0:21

a tumor with cells that have a high, um, amount of nu of,

0:26

uh, cytoplasm relative to the nucleus, which also goes

0:30

with relative facilitated diffusion.

0:33

So this is a diffuse astrocytoma.

0:36

Diffuse astrocytoma is what the WHO criteria, um, refers to

0:42

the, this one previously would've been called a fibrillary

0:45

astrocytoma, so it's,

0:48

but it's now called the diffuse astrocytoma.

Report

Faculty

Asim F Choudhri, MD

Chief, Pediatric Neuroradiology

Le Bonheur Children's Hospital

Lesson

Introduction

Lesson

Meningiomas

Lesson

Non-glial Tumors

Lesson

2021 WHO CNS Tumor Classification

Lesson

Gliomas

Lesson

Pediatric Brain Tumor Cases

Case: Diffuse Astrocytoma